Malicious PDF — malware analysis report

Static analysis result for SHA-256 3904c7a9d52d1b3b…

MALICIOUS

PDF

29.4 KB Created: 2020-06-04 03:48:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f3b3eaaf1f1951fde06fcbe98fdd39d SHA-1: c7bae38962b0f175e872f544e2f51cd9023b8aa8 SHA-256: 3904c7a9d52d1b3b7a809fadd58c88e0c94e4d489808a938a7b783300eca19b9
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which point to domains that appear to be part of a link farm. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a redirection or content delivery scheme. The document body also contains embedded URLs, reinforcing the attack pattern of directing users to external, potentially malicious, resources.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://kjaneco.com/uploads/1/3/0/3/130379199/130379199.html#the+royal+cock+of+1469
    • http://leapsandjumpsgymnastics.com/uploads/1/3/0/5/130588185/ratemerenesek.pdf
    • http://exchange19.ccfiji.com/uploads/1/3/1/3/131381411/tuwevaziz-fizaxupafak-pagewexetinulex-bolaraxo.pdf
    • http://luciaventuraaa.com/uploads/1/3/1/4/131407539/xesasagijamajepuzibu.pdf
    • http://mta-sts.ivoryleaguepublishing.com/uploads/1/3/1/3/131381480/dunal.pdf
    • http://network35.org.uk/uploads/1/3/0/6/130605034/jozozof.pdf
    • http://yourbusinesstracker.com/uploads/1/3/1/6/131606492/66f9d948c.pdf
    • http://lizbuyshouses.net/uploads/1/3/0/6/130621178/8aad6dd3cd89.pdf
    • http://kjaneco.com/uploads/1/3/0/3/130379199/terms.html
    • http://kjaneco.com/uploads/1/3/0/3/130379199/dmca.html
    • http://kjaneco.com/uploads/1/3/0/3/130379199/policy.html
    • https://jumitedav.files.wordpress.com/2020/06/76433148005.pdf
    • https://rabimigoliv.files.wordpress.com/2020/06/31139023056.pdf
    • https://megujujuget.files.wordpress.com/2020/06/mekopixipuruzogozogu.pdf
    • https://vedapam.files.wordpress.com/2020/06/61459775250.pdf
    • https://miserowage857454741.files.wordpress.com/2020/06/bulogivefirimubupir.pdf
    • https://jolikakotex.files.wordpress.com/2020/06/girazolegujutovujigonufat.pdf
    • https://vusuletameta.files.wordpress.com/2020/06/mixufodedaxifilevike.pdf
    • https://divotuzilora.files.wordpress.com/2020/06/zuxesuvagumaver.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004acc.bin
4187ffcb186a4a157c0fa95130c62cdf6047b20593295755941d898a29872f63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4ACC 9304 bytes

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